Five Important Changes to the 2021 International Mechanical Code (IMC)
The new 2021 International Mechanical Code (IMC) has been published and is available to adopt. There are 33 significant changes to eight chapters in the Code’s 2021 edition. While the scope of this article does not cover all of the changes, there are five items that should be noted for new construction and renovation.
Whenever condensate drains or lines are connected directly to a plumbing system, serious health hazards can occur. For instance, sewer gas could permeate from the drains and fill the entire space of a structure. To alleviate sewer gas build-up and other health-related issues, the IMC has adopted new language regarding the use of condensate lines. In the new language, except where discharging to grade, condensate lines can be located only in floor sinks, floor drains, trench drains, mop sinks, hub drains, standpipes, utility sinks, or laundry sinks. Direct connections to the sewer system are no longer permitted.
Mechanical Ventilation in Apartments
Improved language regarding ventilation in apartments (R2 dwellings) can be found in Chapter 4, Ventilation. These dwelling units are required to meet the appropriate air leakage requirements in the International Energy Conservation Code, resulting in minimal air infiltration. Therefore, all dwelling units, such as apartments, must be mechanically ventilated. Openable windows and doors, which typically count as natural ventilation, cannot be the sole source of changing air in the dwelling.
Mass Notification in Today’s World
April 20th, 1999, two young men walked into Columbine High School and forever changed the world. Then came April 16th, 2007 (Virginia Tech), December 14th, 2012 (Sandy Hook), and April 30th, 2019 (UNC-Charlotte); and sadly, there are many more days in recent years. School shootings are just one of the many scenarios that society has experienced as of late where mass notification […]
Education Sector Dilemma – Video Surveillance Without a Budget
Security needs are different from school to school, and funding for security upgrades can be difficult. Schools still have a responsibility to keep students and staff safe. Read more about the advances in technology, training, and the law from our blog.
Are We Running Out of Water?
The World Wildlife Fund (WWF) reports some 1.1 billion people worldwide lack access to water, and a total of 2.7 billion people find water-scarce at least one month of the year. Why are we running out of water? There is an abundance of water, however, the problem is having access to a supply of potable water, or water that is fit for consumption. Even in countries with adequate water resources, water scarcity is still not uncommon. Water shortages can be caused by collapsed infrastructure, failed distribution systems, pollution, poor management, or other economical factors.